<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
        *{
      margin: 0;
    }
    .head{
      display: flex;
      position: fixed;
      width: 100%;
      justify-content: space-between;
      align-items: center;
      background-color:white;
      height: 55px;
      border-bottom: 2px solid gainsboro;
    }
    .smbox1{
      width:610px;
      height: 55px;
    }
    .smbox1_item,.smbox2_item
    {
      display: inline-block;
      color:white;
    }
    .smbox1_item{
      width: 200px;
      line-height: 55px;
      text-align: center;
      background-color: #CF1132;
    }
    .smbox2_item{
      width: 400px;
      height: 55px;
      vertical-align:bottom;
    }
    .wy_logo{
      width: 250px;
      height: 50px;
     
    }
    .tbtn{
      width:250px;
      height: 55px;
      border-left: 2px solid gainsboro;
      line-height: 55px;
      text-align: center;
      cursor: pointer;
      transition: background-color 0.5s,border 0.1s;
    }
    .tbtn:hover{
      background-color: silver;
      border-bottom: 1px solid red;
    }
    .mode{
      background-color: red;
      width: 100%;
      height: 5000px;
    }
  </style>
</head>
<body>
  <div class="head">
    <div class="smbox1">
      <div class="smbox1_item">游戏目录</div>
      <div class="smbox2_item"><img src="pic/615280388a8ae942358bdb6cdzXwSlgR03.jpg" width="100%" alt=""></div>
    </div>
    <div class="wy_logo">
      <img src="pic/wy_logo.png"  alt="">
    </div>
    <div class="tbtn">
      <span>Test
      </span>
    </div>
  </div>
  <div class="mode"></div>
</body>
</html>